I propose a new Gold level Sportsmanship badge. I earned the silver badge June 4th, and I continue to vote for competing answers. I would like to feel that I am working toward something, not because I would otherwise cease to vote for these answers, which clearly I have not, but because it adds to the fun of the site, just like the other badges.
Following the ratios of some other badges, since the silver is at 100, perhaps 400 votes for competing answers is a good level?
When I asked this question I was unaware that all votes for competing answers were counted, believing it was limited to the number of questions. Since in fact all votes are counted I think the threshold needs to be higher, perhaps 1000 votes as suggested by user unknown.
This feature request is fairly popular but has failed to reach critical mass. If anyone has new ideas about how this request might be changed to make it more likely to succeed please share them.
There is renewed interest in this topic due to a similar request on Meta.StackOvervlow (as well as a generous Bounty just started by Josh Crozier):
The community should at least be aware of this parallel development. Perhaps that question should be migrated here and combined with this one as I believe badges are network-wide? Any missing or controversial aspects of this question could be edited appropriately.